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I am validating a safety-first concept for people who practice sailing, paddle boarding, kite surfing and similar sea sports. For this first low-budget MVP, I need a mobile app which is a reliable SOS signal that a user can trigger in one tap, even with spotty connectivity. I will hand over concise functional documentation, wireframes, copy, and a clear user flow. Your job is to turn that input into a lightweight, production-ready APK that a small pilot group can install and test in real conditions. Key elements I expect to see: • One-tap SOS that immediately raises an alert on our backend (or a lightweight third-party service you recommend) • Real-time location sharing while the SOS is active, visible on an in-app map view • Automatic notifications to predefined contacts via push and fallback SMS • A clean, intuitive UI that remains readable in bright sunlight and on wet screens Technical choices are up to you. After delivery I will run live trials with my pilot users; if the concept proves out, there is room for an expanded roadmap and long-term collaboration.
ID do Projeto: 40146775
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Ativo há 20 dias
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193 freelancers estão ofertando em média €511 EUR for esse trabalho

Hello! I can build a safety-first mobile SOS app designed specifically for real sea-sport conditions, fast, reliable, and usable even with poor connectivity and wet, sun-glare screens. Your flow, wireframes, and copy provide a strong foundation, and I’ll focus on turning them into a lightweight, production-ready Android APK that performs under real-world stress, not just ideal lab conditions. For the MVP, I’ll prioritize reliability and simplicity over feature weight. The one-tap SOS will trigger instantly, queue safely if connectivity drops, and sync as soon as a signal is available. While SOS is active, the app will share real-time location to your backend or a lightweight service such as Firebase with SMS fallback, with predefined contacts notified via push and automatic SMS if data fails. The UI will be high-contrast, large-tap, and readable in bright sunlight, optimized for one-handed use on wet screens. What you’ll get: • Production-ready Android APK for pilot testing • One-tap SOS with offline-safe delivery logic • Live location sharing with in-app map view • Push and SMS fallback notifications to emergency contacts • Clean, sunlight-readable UI tuned for real outdoor use • Source code, README, and handoff notes for trials Let’s open the chat. I can walk you through the SOS flow, backend or lightweight service options, and a quick demo outline before we lock the MVP scope. If this aligns, I’m happy to move fast and support live pilot feedback. Best regards, Jasmin
€500 EUR em 7 dias
9,4
9,4

Hello, HAVE HANDS-ON EXPERIENCE WITH SUCH PROJECT I have 11+ years of proven experience building safety-critical and connectivity-aware mobile applications and fully understand the need for a reliable, one-tap SOS MVP that works even in real sea conditions. The goal is to deliver a lightweight, production-ready mobile app focused on instant emergency signaling, continuous location tracking, and maximum usability under stress. -->> One-tap SOS with backend alert triggering -->> Live location sharing with in-app map view -->> Push notifications with SMS fallback for reliability I am confident managing this project end-to-end, from architecture decisions to a stable APK ready for pilot testing, while keeping the solution minimal, robust, and scalable for future expansion. *** Clean, resilient mobile architecture *** Secure and efficient location & alert handling *** Agile workflow with real-world testing readiness I will work full time for you and would like to discuss a few technical and operational points in chat to proceed effectively. Thanks Julian
€350 EUR em 7 dias
8,4
8,4

Hello, {{{ I HAVE CREATED SIMILAR BEFORE AND I CAN SHOW YOU }}}} I’ve reviewed your Sea Sports SOS MVP concept and understand this is a safety-critical, real-world application where reliability matters more than feature volume. I have 10+ years of experience building lightweight mobile applications designed for unstable connectivity, real-time location tracking, and emergency workflows. I can deliver a production-ready Android APK with a true one-tap SOS flow that immediately triggers a backend alert, starts live location sharing, and sends notifications to predefined contacts via push with SMS fallback when data is weak. I’m comfortable selecting pragmatic technical choices (Firebase, lightweight backend, or hybrid services) to ensure fast response, low battery usage, and resilience in poor network conditions. UI will be clean, high-contrast, and readable in bright sunlight, optimized for quick interaction on wet screens. You will receive documented source code and a test-ready APK suitable for live pilot trials. I WILL PROVIDE 2 YEAR FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE, WE WILL WORK WITH AGILE METHODOLOGY AND WILL GIVE YOU ASSISTANCE FROM ZERO TO PUBLISHING ON STOIRES. I’m interested in supporting the pilot phase and continuing long-term if the concept validates successfully. I eagerly await your positive response. Thanks. Christina
€494 EUR em 9 dias
8,3
8,3

Hi there, I understand what you’re trying to validate here — a safety-first SOS app that works fast, stays reliable in poor connectivity, and is simple enough to use in real sea conditions with one tap. This kind of product only works if it’s lightweight, dependable, and doesn’t overcomplicate the flow. I can build a lightweight Android app where a user triggers SOS in one tap, shares live location, and alerts contacts through push and SMS fallback, with a clean screen that’s easy to read outdoors. I’ll keep the build lean, focused on reliability, and ready for real-world pilot testing rather than overengineering. If this sounds aligned, I’d be happy to connect, review your materials, and lock down the quickest, safest way to get this MVP into your pilot users’ hands. Thanks, Rahul A.
€740 EUR em 26 dias
7,9
7,9

Hello, I will develop your safety-first mobile app for sea sports enthusiasts. With experience in creating reliable and intuitive applications, I am confident in delivering a lightweight, production-ready APK that meets your requirements. The one-tap SOS feature, real-time location sharing, and automatic notifications will be implemented with a focus on usability, especially in challenging conditions. I look forward to collaborating on this project and contributing to the safety of water sports participants. Best Regards, Zahid Ali
€250 EUR em 7 dias
7,5
7,5

Hello Marco, I am excited about the Sea Sports SOS MVP project as it aligns perfectly with my expertise in Mobile App Development, User Interface / IA, Android, Android App Development, Java, Mobile Development, Android SDK, Android Studio, and User Experience Research. I understand the need for a reliable SOS signal for sea sports enthusiasts and am confident in my ability to develop a user-friendly mobile app that meets the project requirements. My proposed steps include translating your functional documentation, wireframes, and user flow into a lightweight, production-ready APK with one-tap SOS functionality, real-time location sharing, automatic notifications, and a clean UI. I am eager to discuss this project further and showcase relevant projects from my portfolio. Looking forward to the opportunity to collaborate. - MY WORK STATS: ✨ https://www.freelancer.com/u/XanvraTECH Best regards, Warda Haider
€250 EUR em 8 dias
6,9
6,9

Hello, I will build your Sea Sports SOS MVP in a simple and clean way, with a strong focus on safety, speed and reliability. I can develop the mobile app, the backend APIs and the admin side needed to manage users and SOS events. For the MVP, I will implement core features and an emergency workflow that shares the users live location with the right contacts or responders. I can also add push notifications, basic chat or call action and an admin dashboard to view incidents, users and event history. Security, privacy and battery friendly location updates will be handled carefully. Could you share that, Do you want SOS alerts to include automatic location sharing or allow manual adjustment before send? Looking forward to discussing further. Regards, Kamran.
€280 EUR em 7 dias
7,4
7,4

As your trusted mobile app development team, Einnovention will ensure your Sea Sports SOS MVP is not only delivered on time and within budget but exceeds your expectations. Our team, with expertise in both native and hybrid apps for both Android and iOS, is ideally suited to navigate the challenges an SOS app for sea sports could present. We have a deep understanding of navigating spotty connectivity and location tracking,
€500 EUR em 7 dias
6,4
6,4

Hello Marco, I understand that you are looking to develop a mobile app for sea sports enthusiasts that serves as a reliable SOS signal in emergency situations. I am experienced in Mobile App Development, particularly in Android and User Interface design, and I am confident in my ability to bring your concept to life. I will ensure effective communication throughout the project, providing regular updates and incorporating your feedback to deliver a high-quality MVP. You can view examples of my previous work in my portfolio https://www.freelancer.com/u/Curveballsol I am excited about the opportunity to work on this project with you and am eager to help validate and potentially expand on your safety-first concept. Best regards, Curveball Solutions
€600 EUR em 8 dias
6,4
6,4

Hi I can build a lightweight Android SOS MVP (APK) using Kotlin, background location services, and a reliable alert pipeline that works under spotty connectivity. The key technical challenge is guaranteeing the SOS event and location updates reach the backend even when the network drops or the app is backgrounded. I solve this with an offline-first queue (WorkManager), retries with exponential backoff, and a minimal backend endpoint (or a managed option like Firebase) to receive SOS state and location pings. For live location sharing, I stream updates while SOS is active and render them on an in-app map with clear status indicators and battery-aware intervals. Notifications will use push (FCM) and fall back to SMS for predefined contacts when push delivery isn’t confirmed or connectivity is limited. I’ll keep the UI high-contrast and touch-friendly for wet screens and bright sunlight, with a lock-screen-safe SOS flow. The result is a pilot-ready APK with robust logging so you can validate reliability during real sea-sport trials. Thanks, Hercules
€500 EUR em 7 dias
6,3
6,3

Drawing from my wealth of experience in mobile app development with proficiency in both frontend and backend technologies, I am excited about the pivotal role I can play in creating your Sea Sports SOS MVP. You need an intuitive app with a one-tap SOS feature, real-time location sharing, automatic notifications to predefined contacts, and a readable UI that can withstand wet screens and bright sunlight. With this clarity of expectation, I will build you a lightweight, production-ready APK adaptable for piloting in real-life conditions. What sets me apart is my holistic approach to development that combines both strong technical expertise and creative problem-solving abilities. This ensures that no stone is left unturned throughout the project. Moreover, I understand the importance of quick communication when it comes to emergency situations; hence, I can give you functional APIs that raise alerts either directly or through a trusted third-party service in near-instantaneous fashion. Finally, partnering with me gives you the assurance of extensive post-delivery trial runs as we seek maximum validation for your safety-first concept. Should the trials prove successful, our collaborative efforts can seamlessly extend into subsequent project phases. I am confident that my skills and commitment make me an ideal fit to convert your vision into a tangible reality. Let's connect and embark on this exciting journey together! Thanks.....
€750 EUR em 7 dias
6,3
6,3

Hello There!!! ⚜⭐⭐⭐⭐⚜(( One-tap SOS for sea sports with real-time location and alerts ))⚜⭐⭐⭐⭐⚜ Your concept of a safety-first MVP for sailors, paddle boarders, and kite surfers is exciting because a single tap can make the difference between a safe outing and an emergency. You need a lightweight, reliable mobile app that works even under poor connectivity while remaining intuitive on bright, wet screens. I have extensive experience building Android apps focused on real-time location tracking, push/SMS notifications, and responsive mobile UI for challenging conditions. My approach ensures that critical SOS signals reach your backend or a reliable third-party service instantly, while user location updates continue during the alert. Three key features I would focus on: • One-tap SOS activation with immediate backend alert • Real-time location tracking visible on an in-app map • Automatic notifications to predefined contacts via push and fallback SMS I can deliver a stable MVP ready for live pilot testing and provide guidance for future scaling and long-term collaboration. Warm Regards, Farhin B.
€256 EUR em 15 dias
6,5
6,5

Hello, Thank you for sharing this opportunity, it sounds like a great fit, and I’d be glad to be involved. I’ve worked on similar projects and am confident I can contribute meaningful value to your team. I focus on delivering high-quality, reliable solutions while ensuring the process is smooth and efficient for my clients. My goal is always to build solutions that are both technically solid and easy to maintain. You’re welcome to review my profile to see examples of my previous work. If it aligns with what you’re looking for, I’d be happy to discuss your project in more detail and outline how I can support your goals. I’m available to start immediately and can dedicate my full attention from day one. Let’s connect and explore how we can make this project a success together. Looking forward to your response. With Regards! Abhishek Saini
€500 EUR em 7 dias
6,3
6,3

Hi, Designing a one-tap emergency signal for people out on open water is exactly the kind of reliability-critical product Talvon Technologies specialises in. With 7+ years of mobile and safety-system development experience, we know how to build lightweight apps that still perform when conditions are not ideal. Here is how we would deliver your MVP: ⭐ Android SOS app with true one-tap emergency activation ⭐ Real-time GPS tracking with in-app map view during active alerts ⭐ Push and fallback SMS notifications to predefined contacts ⭐ High-visibility, sunlight-readable UI optimised for wet-screen use ⭐ Backend alert pipeline with secure logging and monitoring ⭐ Production-ready signed APK for pilot deployment We focus on speed, battery efficiency, and signal reliability—exactly what water-sports safety demands. Let’s connect and get your pilot live.
€300 EUR em 7 dias
6,2
6,2

Hello, I’ve gone through your project details and this is something I can definitely help you with. With over 10 years of experience in mobile app development, particularly with Android, I can create a reliable SOS app that meets your needs. My focus will be on ensuring a smooth one-tap SOS feature, real-time location sharing, and intuitive UI design that remains functional in various conditions. I understand the importance of a clean interface that is readable in bright sunlight, particularly for sea sports, and will develop a solution that prioritizes user experience. I'll also recommend an efficient backend service to handle alerts and notifications seamlessly. Here is my portfolio: https://www.freelancer.in/u/ixorawebmob I’m eager to move forward with your project and would love to discuss the following: 1️⃣ Do you have preferences for the backend service? 2️⃣ Are there specific design elements you envision for the UI? 3️⃣ What is your expected timeline for the MVP? 4️⃣ Do you have a list of predefined contacts for notifications? Let’s discuss over chat! What is your expected timeline for the MVP? Regards, Arpit
€555 EUR em 22 dias
7,5
7,5

Hello!! We can build this as a lightweight, reliable SOS MVP designed to work even with spotty connectivity and real-world sea conditions. I’ll turn your documentation and wireframes into a production-ready mobile app focused on speed, clarity, and resilience—no unnecessary features. How I’d approach the MVP: One-tap SOS that immediately triggers an alert to the backend (or a reliable lightweight service if faster) Live location sharing while SOS is active, shown on an in-app map Push notifications with SMS fallback to predefined emergency contacts High-contrast, sunlight-readable UI that works well on wet screens Optimized for reliability, low battery usage, and fast response I’ll keep the architecture simple and robust so it’s easy to iterate later if pilot testing succeeds. You’ll receive a test-ready APK, clear setup notes, and support during your pilot phase. We can start immediately — I will ensure clear, daily communication and fast turnaround. You’ll always know the exact progress. Please connect over chat so we could discuss the details.
€700 EUR em 40 dias
5,8
5,8

Hello, As an experienced and innovative mobile app developer with a strong track record, I believe I'm the perfect fit for your Sea Sports SOS MVP project. Our team has successfully developed numerous Android applications, fully customized to client specifications, and always with the "WOW" factor that sets them apart. Going forward, we want to apply this expertise towards crafting a reliable, straightforward, and effective app to enhance safety in sea sports. Central to our unwavering dedication is understanding client requirements and turning their dreams into a reality - something that aligns perfectly with your low-budget MVP. Your detailed functional documentation, wireframes, copy, and user flow provide an excellent foundation for us to work on. With you as the navigator and us as the crewman, together we can translate your clearly articulated vision into a lightweight, production-ready APK for your pilot group's rigorous testing. Our proven ability to create intuitive UIs even in challenging conditions paired with seamless real-time location sharing solutions will ensure your SOS concept stands up strongly under real-life scenarios. Further ahead, if the MVP's performance meets expectations, we are ready to embark on a long-term collaboration in order to bring this concept forward into its full potential. Let's make an impactful difference in people's lives; let’s build an app that changes things for the better. Thanks!
€350 EUR em 4 dias
6,2
6,2

As an experienced developer and designer, I possess the critical skills required to translate your functional documentation, wireframes, and copy into a reliable and intuitive mobile app. My understanding of Clean Architecture will ensure a lightweight, production-ready APK and my proactive nature will allow for adaptability given various conditions. In addition to meeting your expectations of a one-tap SOS, real-time location sharing, automatic notifications, and screen visibility in challenging conditions, my focus on scalable and maintainable systems guarantees the potential for expansion in your roadmap post-MVP. My versatile technical expertise makes me uniquely equipped to handle this project. Not only have I contributed to numerous successful mobile apps like Victoria UAE Real Estate Property, Gifting Tracker, ExploreDen, Azkar e Quran, but my proficiency extends to a range of platforms—Flutter and React Native, among others—and backend development using Python and Node.js. This flexible skill set enables me to craft high-performance digital products and deliver complete solutions on time.
€500 EUR em 7 dias
6,2
6,2

Hi, We’ve developed similar MVPs that focus on user safety and real-time location sharing. For example, we created a product called “Desert Safari” that allows users to share their location with friends and family while driving in remote areas. We also integrated SOS alerts with automatic notifications to predefined contacts. We can build a reliable SOS feature that works even with spotty internet. We’ll use a lightweight backend service like Firebase to ensure alerts are sent quickly and reliably. Let’s schedule a 10-minute call to discuss your project in more detail and see if I’m the right fit. I usually respond within 10 minutes. I’m eager to learn more about your exciting project. Best regards, Adil
€550 EUR em 7 dias
5,7
5,7

Greetings, I’m excited about your Sea Sports SOS MVP project! It sounds like you’re looking to create a mobile app that prioritizes safety for water sports enthusiasts. My goal would be to develop a simple yet effective one-tap SOS feature that can function reliably, even in challenging connectivity situations. I’ll ensure the app includes real-time location sharing and notifications to keep users connected with their pre-defined contacts during emergencies. With a focus on a clean and intuitive UI, I’ll make sure it’s easy to read in bright sunlight and usable even on wet screens. My experience in mobile app development, particularly with Android, gives me the tools to bring your vision to life. I’m looking forward to collaborating on this important safety initiative. Best regards, Saba Ehsan
€450 EUR em 5 dias
5,5
5,5

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